Picker stick for looms



June 1 ,1926. 1,586,644 1 J. T. BATTING PicKER STICK FOR LOOMS Filed Feb 1, 1924 l I l fax 144.... $11? afj atwrnqyj Patented June 1, 1926.

, UNI-TED STATES JOHN T. BATTING, or rm'ivron'rn, MASSACHUSETTS.

rrcxnn STICK ron Looms.

Application filed February ,In operating looms by means of a picker strick swinging back and forth about one end and actuating the shuttle of the loom at the other end there is a pronounced tendency for the picker stickto break due to abnormal obstruction of the stick. Many attempts have been made to provide a picker stick which will yield when an abnormal obstruction is encountered but so far as I am aware none of these sticks have been sufficiently practical to becommercially adopted to any substantial extent. One line of effort has been directed towarda jointed metallic stick provided with a spring topermit the stick to break at the joint against the action of the spring when the movement of the stick is obstructed. However, owing to the sharp and rapid impacts to which a picker stick is subjected, metallic sticks have not proved commercial for the reason that metal crystallizes under the repeated shock and for other reasons.

Objects of the present invention are to provide a stick which is economical to make and simple to install, which can be installed in the limited space ordinarily available. in

looms which will yield when abnormally obstructed instead of breaking, which canbe constructed of wood or materials other than metal, and whichwill operate indefinitely.

without injury either to the stick or other parts of the machine.

For the purpose of illustrating the genus of the invention a concrete embodiment is shown in the accompanying drawings in which Fig. 1 is a side elevation of the stick, cooperating parts of the machine being broken away;

Fig. 2 of the stick when obstructed;

Fig. 3 is a view from the right of Fig. 1; gig. 1 is a section on line 44c of Fig. 1; an

Fig. 5 isa section on line 5-5 of Fig. 1.

The particular embodiment of invention chosen for the purpose of illustration co1nprises two overlapping sectionsl and 2 which are preferably made of wood. The lower section 2, which constitutes the sup porting section inasmuch as it supports the a other section 1, is pivoted at 3 to the usual rocker 4c. The actuating section 1, which actuates the shuttle through the picker 5, is connected to a suitable source of power is a similar View showing the action 1, 1924. Serial No. 689,891.

posite section 1. The upper end of section 2 is rounded at 10 concentric with the rivet 9 so that the sticks may swingrelatively to each other intothe position shown in Fig. 2. Springs 11 extend along the sides of the overlapping portions near the lower end thereof and are anchored to pins 12 fastened on the outer faces ofthesections by means of straps 13. The springs 11 are preferably so tensioned thatthe two sections are held together substantially as an integral stick in the normal operation of the machine but permit the stick to break into the position shown in Fig. 2 when abnormally obstructed. \Vhile the springs may betensioned to permit the overlapping portions to separate slightly whenthe stick delivers its'blow to the parts operated thereby, this is undesirable in most cases and the springs are preferably tensioned substantially to avoid this. a From the foregoing it will be evident that this invention permits the "use of wooden sticks since the two sections aretied together by means surrounding the overlapping portions instead of being pivoted together by means passing through the sections, whereby all the forces are applied to the sides of the sticks so as not to tend to split the wood.

I claim:

1. A. picker stick comprising overlapping sections and means for holding the sections in overlapping relationship, said means in-- eluding a spring attached to said sections ,The two sections are pivotally connected when the normal movement of the stock is obstructed.

3. A picker stick comprising a supporting section for pivotal attaclnnent to a support, an actuating section for connection to the source oi? power, the actuating section overlapping the supporting section .on the advance side of the latter, and means "for maintaining said sections in overlapping relationship, said means including a spring extending transversely of the overlapping sections and at its opposite ends operative upon thesections respectively, said spring be ng adjusted normally to hold said sections tightly together so to function substantially as an integral stick but when the normal movement oi the stick is abnormally obstructed to permit the actuating section to swing around the end of the supporting section.

et. A. picker stick comprising two sections overlapping in the plane of mov-ment, means for pivot-ally connecting the sections at the overlapping end of one section, and on each side ot the o er-lapping end of the other section a spring vtor holding the oven lapping sections together.

A picker stick comprising tWO sections overlapping in the plane of movement, means surrounding the overlapping portions near each end thereof to tie the sec tions together, the means near one end of the overlapping portions including a spring to permit the sections to pivot relatively to each other when the normal movement of the stick is abnormally obstructed.

6. A picker stick comprising two sections overlapping in the plane of movement, means surrounding the overlapping portions near each end thereof to tie the sec tions together, the means near one end of the overlapping portions including a spring to permit the sections to pivot relatively to veach other when the normal movement of the stick is abnornally obstructed, and the means near the other end of the over lapping portions being interlocked with the sections to restrain relative movement oi the sections longitudinally thereof.

7. A picker stick comprising two sections overlapping in the plane of moven'ient, one said'sections having a recess in the side opposite the other section, pivot means intercoi'inecting the sections at one end 01 the overlapping portions, and spring means holding the sections together at the other end of the overlapping portions, said pivot means surrounding one section and seating in vthe recess in the side of the other section. 8. A. picker stick comprising two sections overlapping in the plane of n'iovenient, one of said sections having a transverse recess, pivot means interconnecting the sect-ions at one end of the overlapping portions, the pivot end of the recessed section being rounded on the side next to the other section, pivot means setting in the transverse recess on the opposite side of that section, and spring means holding the sections together at the other end of the overlapping portions.

Signed by me at Boston, Massachusetts this twenty-fourth day of January 1924:,

JOHN T. BATTING. 

